Purchase Green's 6 Inch Aluminum Putting Green Cups are USGA (United States Golf Association) regulation 4.25" diameter, 6" deep golf cups for putting greens. Our aluminum golf cups for putting greens are ideal for backyard putting green installation as well as for the practicing golfer that wants to improve their game. These 6 Inch Aluminum Putting Green Cups have a deeper cup to allow him/her to drain more putts before having to retrieve the golf balls. Our 6 Inch Aluminum Putting Green Cups are the best golf cups for putting greens.